I'm not satisfied with the Aluma. I mean, I love the trailer itself (5 x 8 feet), but it's not ideal for carrying longer boats.
When I carry my and MDB's solos, everything is fine. But when I need to carry some 17 and 18 foot boats, I have to shift the hulls so far back (to not hit the tow vehicle, especially on turns) that the trailer tongue becomes unloaded, or nearly so. This makes for poor and possibly dangerous towing.

I'll likely find a cheap trailer next year, tear it apart, and build my own dedicated canoe trailer. I built trailers before, and it'll be pretty easy.

You have a BT638. I have the same trailer but with solid sides and a bifold gate. I think to use that trailer to carry boats, you need to lengthen the tongue.

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